DB21T+4469-2026主要針葉樹種立木含碳量相容性模型及碳計(jì)量

ICS65.020.20CCSB61212026-07-07發(fā)布DB21/T4469—2026本文件按照GB/T1.1—2020《標(biāo)準(zhǔn)化工作導(dǎo)則第1部分：標(biāo)準(zhǔn)化文件的結(jié)構(gòu)和起草規(guī)則》的規(guī)定起請(qǐng)注意本文件的某些內(nèi)容可能涉及專利。本文件的發(fā)布機(jī)構(gòu)不承擔(dān)識(shí)別專利的責(zé)任。本文件由遼寧省林業(yè)和草原局提出并歸口。本文件起草單位：沈陽(yáng)農(nóng)業(yè)大學(xué)、遼寧省林業(yè)科學(xué)研究院、北票市林業(yè)和草原局、岫巖滿族自治縣自然資源事物服務(wù)中心、本溪市林業(yè)和草原局、彰武縣林業(yè)和草原局、寬甸滿族自治縣林業(yè)和草原局、國(guó)有清原滿族自治縣大孤家林場(chǎng)、本溪滿族自治縣清河城實(shí)驗(yàn)林場(chǎng)。本文件主要起草人：高慧淋、殷有、孫云霞、呂海燕、鄭雪敏、張晏愷、單曉宇、白國(guó)華、隋炎佐、史秀舉、張亮、叢劍鋒、劉冰、王小星、連永剛、趙慶喜、于翔、胡延辰、劉家騰、佟藝玟、倪銘岐、鄒怡茜、劉芷岐、馬雪諾、閆慧鵬、程海嘉、程淇、邰浩宇、馬恩普。本文件發(fā)布實(shí)施后，任何單位和個(gè)人如有問題和意見建議，均可以通過(guò)來(lái)電和來(lái)函等方式進(jìn)行反饋，我們將及時(shí)答復(fù)并認(rèn)真處理，根據(jù)實(shí)際情況依法進(jìn)行評(píng)估及復(fù)審。歸口管理部門通訊地址：遼寧省林業(yè)和草原局（遼寧省沈陽(yáng)市和平區(qū)太原北街2號(hào)），聯(lián)系電話文件起草單位通訊地址：沈陽(yáng)農(nóng)業(yè)大學(xué)(遼寧省沈陽(yáng)市沈河區(qū)東陵路120號(hào))，聯(lián)系電話DB21/T4469—20261主要針葉樹種立木含碳量相容性模型及碳計(jì)量本文件規(guī)定了遼寧省落葉松（Larixgmelinii）、紅松（Pinuskoraiensis）、樟子松（Pinussylvestris）等8種針葉樹種立木樹干、樹枝、樹葉、樹根含碳量相容性模型數(shù)據(jù)調(diào)查及處理方法、相容性模型研建方法、參數(shù)估計(jì)方法、不同針葉樹種相容性模型的參數(shù)估計(jì)值。本文件適用于主要針葉樹種樹干、樹枝、樹葉、樹根含碳量的估算。2規(guī)范性引用文件下列文件中的內(nèi)容通過(guò)文中的規(guī)范性引用而構(gòu)成本文件必不可少的條款。其中，注日期的引用文件，僅該日期對(duì)應(yīng)的版本適用于本文件；不注日期的引用文件，其最新版本（包括所有的修改單）適用于本文件。GB/T26424森林資源規(guī)劃設(shè)計(jì)調(diào)查技術(shù)規(guī)程GB/T43648主要樹種立木生物量模型與碳計(jì)量參數(shù)LY/T2188.2森林資源數(shù)據(jù)采集技術(shù)規(guī)范第2部分：森林資源規(guī)劃設(shè)計(jì)調(diào)查L(zhǎng)Y/T2258立木生物量建模方法技術(shù)規(guī)程3術(shù)語(yǔ)和定義下列術(shù)語(yǔ)和定義適用于本文件。3.1含水率watercontent樹木各器官中所含水分的重量和干重之比。[來(lái)源：LY/T2259—2014，3.2，有修改]3.2生物量biomass某一時(shí)刻單位面積內(nèi)實(shí)際存活的有機(jī)物質(zhì)（干重）總量。[來(lái)源：GB/T26424—2010，3.17，有修改]3.3含碳量相容性模型compatibilitycarbonstockmodel以立木總含碳量為基礎(chǔ)，總含碳量與樹干各組成部分的含碳量之和相等的非線性相容性模型。3.4碳計(jì)量carbonparameterDB21/T4469—20262相容性模型參數(shù)的估計(jì)結(jié)果。4外業(yè)調(diào)查4.1標(biāo)準(zhǔn)地設(shè)置選取具有代表性的林分設(shè)置標(biāo)準(zhǔn)地，標(biāo)準(zhǔn)地的形狀可為矩形或圓形，面積≥0.06hm2。4.2解析木的選取依據(jù)標(biāo)準(zhǔn)地調(diào)查的結(jié)果，所有樹木按照胸徑由大到小的順序排序，按照等斷面積劃分為5個(gè)組，分別在第1組、第3組和第5組選取1株平均木作為樣木進(jìn)行解析。4.3樹干鮮重測(cè)定及樣品選擇將選取的優(yōu)勢(shì)木、平均木、劣勢(shì)木伐倒去掉樹枝后，從樹根至樹梢按照1m的長(zhǎng)度將樹干進(jìn)行分段，上端不足1m的部分為梢頭。稱量所有區(qū)分段鮮重（kg），計(jì)算得到全樹干的鮮重。將樹木伐倒去掉樹枝后，從樹干基部到樹梢按照1m的長(zhǎng)度將樹干進(jìn)行切割，不足1m的部分確定為梢頭。為計(jì)算樹干含水率，在樹干每個(gè)區(qū)分段上端及0m、1.3m處截取厚度約為2cm的圓盤，在每個(gè)圓盤上截取楔形木塊作為樣品，記錄鮮重（g）。4.4枝條鮮重測(cè)定及樣品選擇將樹干上所有活枝條取下，稱量每一個(gè)帶葉枝條的鮮重（g）。將樹冠上、中、下層三層的標(biāo)準(zhǔn)枝條進(jìn)行枝葉分離，分別記錄樹枝和樹葉的鮮重。為計(jì)算樹干含水率，將樹冠每層的樹枝取100g左右作為樣品，記錄鮮重（g）。4.5樹葉鮮重測(cè)定及樣品選擇將樹冠等分為長(zhǎng)度相等的上、中、下三層，每層選取1個(gè)大小中等、健康的枝條作為標(biāo)準(zhǔn)枝條。將標(biāo)準(zhǔn)枝條進(jìn)行枝葉分離，分別記錄樹枝和樹葉的鮮重（g），將樹冠每層的樹葉取100g左右作為樣品，記錄鮮重（g）。4.6樹根鮮重測(cè)定及樣品選擇將樹根全部挖出，將樹根按照大于5cm、2cm～5cm和小于2cm三個(gè)等級(jí)分組，分別測(cè)定每個(gè)組樹根的鮮重，將三個(gè)組的重量累計(jì)得到樹根鮮重（kg）。將樹根分為大于5cm、2cm～5cm和小于2cm三個(gè)等級(jí)，為計(jì)算樹干含水率，每個(gè)等級(jí)的樹根分別選取200g左右作為樣品，對(duì)其進(jìn)行保鮮處理后，帶回實(shí)驗(yàn)室，記錄鮮重（g）。5內(nèi)業(yè)測(cè)定5.1生物量計(jì)算用干燥箱將選取的各樹木器官的所有樣品在85℃的條件下烘干至恒重，記錄各樣品干重，由各器官樣品的干重和鮮重的比例計(jì)算含水率，進(jìn)而計(jì)算單木各器官的生物量。5.2含碳率測(cè)定將烘干后的樹木器官的樣品進(jìn)行研磨，將研磨后的樣品重新在85℃的恒溫條件下進(jìn)行烘干處理。所有樣品均分別取50mg左右的樣品，進(jìn)行樣品含碳率的測(cè)定。DB21/T4469—202635.3含碳量計(jì)算利用各樹木器官的生物量乘以各器官的含碳率，計(jì)算樹木各器官的含碳量。6相容性模型構(gòu)建6.1變量的選取以樹木胸徑為單一變量構(gòu)建樹木器官一元相容性含碳量預(yù)估模型，以胸徑、樹高為變量構(gòu)建二元相容性含碳量預(yù)估模型。6.2相容性模型構(gòu)建一元相容性模型：式中：t——針葉樹全樹含碳量(kg);s——針葉樹樹干含碳量(kg);b——針葉樹樹枝含碳量(kg);l——針葉樹樹葉含碳量(kg);r——針葉樹樹根含碳量(kg);D——樹木胸徑(cm);二元相容性模型：式中：t——針葉樹全樹含碳量(kg);s——針葉樹樹干含碳量(kg);b——針葉樹樹枝含碳量(kg);l——針葉樹樹葉含碳量(kg);DB21/T4469—20264r——針葉樹樹根含碳量(kg);D——樹木胸徑(cm);H——樹高(m);b6.3參數(shù)估計(jì)所有針葉樹種的一元、二元立木含碳量相容性模型的參數(shù)均采用R語(yǔ)言聯(lián)立方程組的方法進(jìn)行擬合。6.4模型的評(píng)價(jià)指標(biāo)以調(diào)整后的決定系數(shù)（R以調(diào)整后的決定系數(shù)（Rdj）作為模型擬合優(yōu)度的指標(biāo)，公式如下：式中：n——樣本個(gè)數(shù)；p——參數(shù)個(gè)數(shù)。7碳計(jì)量方程基于6.3部分估計(jì)得出的相容性模型的參數(shù)結(jié)果，編制遼寧省主要針葉樹種一元立木含碳量相容性模型計(jì)量參數(shù)用表，按照附錄A執(zhí)行；編制遼寧省主要針葉樹種二元立木含碳量相容性模型計(jì)量參數(shù)用表，按照附錄B執(zhí)行。DB21/T4469—20265（規(guī)范性）主要針葉樹一元立木含碳量相容性模型計(jì)量參數(shù)遼寧省主要針葉樹種一元立木含碳量相容性模型計(jì)量參數(shù)按照表A.1執(zhí)行。表A.1主要針葉樹一元立木含碳量相容性模型計(jì)量參數(shù)表kkk0.0245D2.7255Cs=1+2.6580D-1.0755+3.0004D-1.5083+0.1766D0.16550.0245×2.6580D(-1.0755+2.7255)Cb=1+2.6580D-1.0755+3.0004D-1.5083+0.1766D0.16550.0245×3.0004D(-1.5083+2.7255)Cl=1+2.6580D-1.0755+3.0004D-1.5083+0.1766D0.16550.0245×0.1766D(0.1655+2.7255)1+2.6580D-1.0755+3.0004D-1.5083+0.1766D0.16551+2.6580D-1.0755+3.0004D-1.5083+0.1766D0.16550.0384D2.5196Cs=1+0.0315D0.5499+0.1146D-0.0785+0.0540D0.58070.0384×0.0315D(0.5499+2.5196)Cb=1+0.0315D0.5499+0.1146D-0.0785+0.0540D0.58070.0384×0.1146D(-0.0785+2.5196)Cl=1+0.0315D0.5499+0.1146D-0.0785+0.0540D0.58070.0384×0.0540D(0.5807+2.5196)r1+0.0315D0.5499+0.1035D2.1529Cs=1+0.9827D-0.4280+2.7908D-1.1112+0.9955D-0.79360.1035×0.9827D(-0.4280+2.1529)Cb=1+0.9827D-0.4280+2.7908D-1.1112+0.9955D-0.79360.1035×2.7908D(-1.1112+2.1529)Cl=1+0.9827D-0.4280+2.7908D-1.1112+0.9955D-0.79360.1035×0.9955D(-0.7936+2.1529)Cr=1+0.9827D-0.4280Cr=0.3062D1.8452Cs=1+11.2183D-1.0215+0.7925D-0.9827+2.4683D-0.50690.3062×11.2183D(-1.0215+1.8452)Cb=1+11.2183D-1.0215+0.7925D-0.9827+2.4683D-0.50690.3062×0.7925D(-0.9827+1.8452)Cl=1+11.2183D-1.0215+0.7925D-0.9827+2.4683D-0.50690.3062×2.4683D(-0.5069+1.8452)Cr=1+11.2183D-1.0215Cr=DB21/T4469—20266表A.1主要針葉樹一元立木含碳量相容性模型計(jì)量參數(shù)表（續(xù)）bkkCs=Cb=Cl=Cr=0.5809D1.40911+2.7069D-0.8084+1.0892D-0.8144+1.5426D-0.31520.5809×2.7069D(-0.8084+1.4091)1+2.7069D-0.8084+1.0892D-0.8144+1.5426D-0.31520.5809×1.0892D(-0.8144+1.4091)1+2.7069D-0.8084+1.0892D-0.8144+1.5426D-0.31520.5809×1.5426D(-0.3152+1.4091)1+2.7069D-0.8084+1.0892D-0.8144+1.5426D-0.3152Cs=Cb=Cl=Cr=0.0865D2.16071+1.7199D-0.6478+0.3249D-0.3377+2.5066D-0.73310.0865×1.7199D(-0.6478+2.1607)1+1.7199D-0.6478+0.3249D-0.3377+2.5066D-0.73310.0865×0.3249D(-0.3377+2.1607)1+1.7199D-0.6478+0.3249D-0.3377+2.5066D-0.73310.0865×2.5066D(-0.7331+2.1607)1+1.7199D-0.6478+0.3249D-0.3377+2.5066D-0.7331Abiesfabri0.6209D1.6535Cs=1+10.5846D-1.1325+12.0344D-1.2039+3.7853D-1.02270.6209×10.5846D(-1.1325+1.6535)Cb=1+10.5846D-1.1325+12.0344D-1.2039+3.7853D-1.02270.6209×12.0344D(-1.2039+1.6535)Cl=1+10.5846D-1.1325+12.0344D-1.2039+3.7853D-1.02270.6209×3.7853D(-1.0227+1.6535)1+10.5846D-1.1325+12.0344D-1.2039+3.7853D-1.02271+10.5846D-1.1325+12.0344D-1.2039+3.7853D-1.02270.1205D2.0262Cs=1+0.1680D0.2188+0.5852D-0.5224+0.4553D-0.39390.1205×0.1680D(0.2188+2.0262)Cb=1+0.1680D0.2188+0.5852D-0.5224+0.4553D-0.39390.1205×0.5852D(-0.5224+2.0262)Cl=1+0.1680D0.2188+0.5852D-0.5224+0.4553D-0.39390.1205×0.4553D(-0.3939+2.0262)Cr=1+0.1680D0.2188+0.5852D-0.5224+0.4553D-0.3939DB21/T4469—20267（規(guī)范性）主要針葉樹二元立木含碳量相容性模型計(jì)量參數(shù)遼寧省主要針葉樹種二元立木含碳量相容性模型計(jì)量參數(shù)參照表B.1執(zhí)行。表B.1主要針葉樹二元立木含碳量相容性模型計(jì)量參數(shù)表bkkk0.0161×D2×0.9665H0.9665Cs=1+6.7484D-2×0.4651H-0.4651+5.9725D-2×0.5845H-0.5845+0.2144D-2×0.0352H-0.03520.0161×6.7484D(-2×0.4651+2×0.9665)H(-0.4651+0.9665)Cb=1+6.7484D-2×0.4651H-0.4651+5.9725D-2×0.5845H-0.5845+0.2144D-2×0.0352H-0.03520.0161×5.9725D(-2×0.5845+2×0.9665)H(-0.5845+0.9665)Cl=1+6.7484D-2×0.4651H-0.4651+5.9725D-2×0.5845H-0.5845+0.2144D-2×0.0352H-0.03520.0161×0.2144D(-2×0.0352+2×0.9665)H(-0.0352+0.9665)Cr=1+6.7484D-2×0.4651H-0.4651+5.9725D-2×0.5845H-0.5845Cr=0.0096×D2×1.0285H1.0285Cs=1+0.0191D-2×0.1365H0.2462+0.1151D-2×0.4468H-0.0278+0.0384D-2×0.2095H0.24000.0096×0.0191D(-2×0.1365+2×1.0285)H(0.2462+1.0285)Cb=1+0.0191D-2×0.1365H0.2462+0.1151D-2×0.4468H-0.0278+0.0384D-2×0.2095H0.24000.0096×0.1151D(-2×0.4468+2×1.0285)H(-0.0278+1.0285)Cl=1+0.0191D-2×0.1365H0.2462+0.1151D-2×0.4468H-0.0278+0.0384D-2×0.2095H0.24000.0096×0.0384D(-2×0.2095+2×1.0285)H(0.2400+1.0285)r1+0.0191D-2×0.1365H0.2462+0.1151D-2×0.4468H-0.0278+0.0783×D2×0.8138H0.8138Cs=1+1.0100D-2×0.1573H-0.1573+3.7782D-2×0.4415H-0.4415+1.2225D-2×0.3139H-0.31390.0783×1.0100D(-2×0.1573+2×0.8138)H(-0.1573+0.8138)Cb=1+1.0100D-2×0.1573H-0.1573+3.7782D-2×0.4415H-0.4415+1.2225D-2×0.3139H-0.31390.0783×3.7782D(-2×0.4415+2×0.8138)H(-0.4415+0.8138)Cl=1+1.0100D-2×0.1573H-0.1573+3.7782D-2×0.4415H-0.4415+1.2225D-2×0.3139H-0.31390.0783×1.2225D(-2×0.3139+2×0.8138)H(-0.3139+0.8138)r1+1.0100D-2×0.1573H-0.1573+3.7782D-2×0.4415H-0.4415+1.20.1843×D2×0.7120H0.7120Cs=1+31.0080D-2×0.4831H-0.4831+1.8873D-2×0.4503H-0.4503+3.7083D-2×0.2272H-0.22720.1843×31.0080D(-2×0.4831+2×0.7120)H(-0.4831+0.7120)Cb=1+31.0080D-2×0.4831H-0.4831+1.8873D-2×0.4503H-0.4503+3.7083D-2×0.2272H-0.22720.1843×1.8873D(-2×0.4503+2×0.7120)H(-0.4503+0.7120)Cl=1+31.0080D-2×0.4831H-0.4831+1.8873D-2×0.4503H-0.4503+3.7083D-2×0.2272H-0.22720.1843×3.7083D(-2×0.2272+2×0.7120)H(-0.2272+0.7120)r1+31.0080D-2×0.4831H-0.4831+1.8873D-2×0.4503H-0.4503+表B.1主要針葉樹二元立木含碳量相容性模型計(jì)量參數(shù)表（續(xù)）bkkkDB21/T4469—202680.4129×D2×0.5830H0.5830Cs=1+3.6153D-2×0.3511H-0.3511+1.4116D-2×0.3479H-0.3479+1.9590D-2×0.1591H-0.15910.4129×3.6153D(-2×0.3511+2×0.5830)H(-0.3511+0.5830)Cb=1+3.6153D-2×0.3511H-0.3511+1.4116D-2×0.3479H-0.3479+1.9590D-2×0.1591H-0.15910.4129×1.4116D(-2×0.3479+2×0.5830)H(-0.3479+0.5830)Cl=1+3.6153D-2×0.3511H-0.3511+1.4116D-2×0.3479H-0.3479+1.9590D-2×0.1591H-0.15910.4129×1.9590D(-2×0.1591+2×0.5830)H(-0.1591+0.5830)Cr=1+3.6153D-2×0.3511H-0.3511+1.4116D-2×0.3479H-0.3479+1.9590D-2×0.1591H-0.15910.1057×D2×0.7702H0.7702Cs=1+1.9121D-2×0.2518H-0.2518+0.3844D-2×0.1455H-0.1455+3.7514D-2×0.3244H-0.32440.1057×1.9121D(-2×0.2518+2×0.7702)H(-0.2518+0.7702)Cb=1+1.9121D-2×0.2518H-0.2518+0.3844D-2×0.1455H-0.1455+3.7514D-2×0.3244H-0.32440.1057×0.3844D(-2×0.1455+2×0.7702)H(-0.1455+0.7702)Cl=1+1.9121D-2×0.2518H-0.2518+0.3844D-2×0.1455H-0.1455+3.7514D-2×0.3244H-0.32440.1057×3.7514D(-2×0.3244+2×0.7702)H(-0.3244+0.7702)Cr=1+1.9121D-2×0.2518H-0.2518+0.3844D-2×0.1455H-0.1455Cr=Abiesfabri0.3337×D2×0.6469H0.6469Cs=1+34.4468D-2×0.5265H-0.5265+33.9541D-2×0.5341H-0.5341+18.2061D-2×0.5364H-0.53640.3337×34.4468D(-2×0.5265+2×0.6469)H(-0.5265+0.6469)Cb=1+34.4468D-2×0.5265H-0.5265+33.9541D-2×0.5341H-0.5341+18.2061D-2×0.5364H-0.53640.3337×33.9541D(-2×0.5341+2×0.6469)H(-0.5341+0.6469)Cl=1+34